4.0.0 spring-reactive-kotlin spring-reactive-kotlin jar Demo project for Spring Boot parent-kotlin com.baeldung 1.0.0-SNAPSHOT ../parent-kotlin org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-webflux com.fasterxml.jackson.module jackson-module-kotlin org.springframework.boot spring-boot-starter-test test io.projectreactor reactor-test test kotlin-maven-plugin org.jetbrains.kotlin ${kotlin.version} -Xjsr305=strict